October 10, 2015

Homework Help: Physics

Posted by Chris on Thursday, April 25, 2013 at 3:51pm.

When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)

Please help; need a original answer no Google search. Thank you in advance...

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